ID 1.13.11.71 DE carotenoid-9',10'-cleaving dioxygenase. AN beta-carotene 9',10'-monooxygenase. CA all-trans-beta-carotene + O2 = all-trans-10'-apo-beta-carotenal + beta- CA ionone. CC -!- The enzyme catalyzes the asymmetric oxidative cleavage of CC carotenoids. CC -!- The mammalian enzyme can also cleave all-trans-lycopene. CC -!- Formerly EC 1.14.99.n2. DR Q9BYV7, BCDO2_HUMAN; Q8HXG8, BCDO2_MACFA; Q99NF1, BCDO2_MOUSE; DR Q6QT07, BCDO2_MUSPF; Q5RF16, BCDO2_PONAB; //